Re: [PATCH 2/4] mfd: max77686: Use module_i2c_driver() instead of subsys initcall

From: Lee Jones
Date: Mon Feb 15 2016 - 03:21:16 EST


On Mon, 15 Feb 2016, Krzysztof Kozlowski wrote:

> On 12.02.2016 13:30, Javier Martinez Canillas wrote:
> > The driver's init and exit function don't do anything besides adding and
> > deleting the I2C driver so the module_i2c_driver() macro could be used.
> >
> > Currently is not being used because the driver is initialized at subsys
> > initcall level, claiming that this is done to allow consumers devices to
> > use the resources provided by this driver. But dependencies should be in
> > the DT and consumers drivers should not rely in the registration order.
> >
> > Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
> > ---
> >
> > drivers/mfd/max77686.c | 13 +------------
> > 1 file changed, 1 insertion(+), 12 deletions(-)
> >
>
> In the past not all dependencies supported deferred probing so such
> ordering was required.
>
> I don't like the "dependencies should be in DT" reason for the change...
> because it is kind of wishful thinking. Yeah, the dependencies should be
> in DT, but are they?
>
> Instead *please check it* and write:
> "Dependencies are in DT so manual ordering of init calls is not
> necessary any more".
>
> My fast tests of this patch shown that it works good... but some more
> thorough tests should be done.

See to all of this, collect the Acks you've received and re-submit
please.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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